Mug



FIG. 1 is a perspective view of a mug showing my new design;

FIG. 2 is a side elevational view;

FIG. 3 is a side elevational view rotated 90° from that shown in FIG. 2;

FIG. 4 is a top plan view; and,

FIG. 5 is a bottom plan view. 

The ornamental design for a mug, substantially as shown. 